Hi Nigel,
The surface was (is) the best we can have in Finland. It has huge grip also with street tires, but the temperature "window" is very small, like last saturday, afternoon the track was too hot and normal street tires where simply melting. They were like there were oil on the track.
Key point in my launch was the getting full speed with small wheel spin in first gear and second gear was doing the same, small wheel spin up to excellent grip and the time was there
.
I could easily think launch like that with launch control, some 10-15% wheel spin with small gears.
All my other runs I ruined just because of the huge wheel spin in first and second gear.
- Jari -